Oxygen preparation equipment gas distribution valve
A technology of gas distribution valve and oxygen production equipment, which is applied in specific gas purification/separation, mechanical equipment, oxygen preparation and other directions, and can solve problems such as unstable partial pressure of gas distribution valve, unstable rotation of rotary valve, and loose pressing device.
Inactive Publication Date: 2018-04-20
河北金利康科技集团有限公司
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Problems solved by technology
The structure of the balance rotary valve of the gas distribution valve currently used is to tighten the pressure plate below it through the fastening screw on the upper flange, and the pressure plate transmits the force to the rotary valve. The fastening screw of this structure is through It is operated manually, so the balance of the compression disc is not easy to control, and after a period of use, the compression device becomes loose, causing the rotation of the rotary valve to be unstable, the partial pressure of the gas distribution valve is not stable, and finally the oxygen concentration produced reduce
Method used
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Embodiment Construction
[0014] refer to figure 1 , figure 2 , a gas distribution valve for oxygen making equipment, consisting of a fixed valve 15, a rotary valve 12, a lower flange 16, and an upper flange 3, the fixed valve 15 is fixed on the lower flange 16, and the fixed valve 15 and the rotary valve 12 are respectively connected The air holes 18, 19, when the rotary valve 12 rotates, the air holes 18, 19 are regularly closed and closed, the fixed valve has an inlet port 20 and an oxygen outlet port 21, the rotary valve 12 is equipped with a bearing 13, and the bearing 13 is equipped with a bearing The positioning sleeve 17, the rotary valve 13 is equipped with a pressure bearing 10, the pressure bearing 10 is covered with a pressure bearing sheath 9, and the fixed valve 15, the rotary valve 12 and the pressure bearing sheath 9 are surrounded by an integral flange 11, The one-piece flange 11, the rotary valve 12 and the pressure bearing 10 form a nitrogen chamber. The one-piece flange 11 is prov...
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The invention relates to the field of oxygen production equipment, in particular to a gas distribution valve for oxygen production equipment. The composition includes a fixed valve, a rotary valve, a lower flange and an upper flange. A reducer is installed on the upper flange, and the reducer is controlled by a servo motor. The rotating shaft of the motor extends into the groove of the rotary valve, and the rotation of the deceleration motor drives the rotation of the rotary valve. There is an air bag between the upper flange and the integrated flange. There is a support tube in the center of the air bag, and the upper and lower layers of the support tube are sealed. The airbag flange is fixed outside the airbag, the airbag flange, the support tube and the airbag form a pressure chamber, the pressure of the counter-rotary valve is stable, and the rotation of the rotary valve is balanced, so that the partial pressure of the gas distribution valve is stable, ensuring that the output of oxygen is always High concentration, PTFE pad enhances the wear resistance of the gas distribution valve used in oxygen making equipment and prolongs the service life. The servo is equipped with parameters to control the speed of the servo motor. Control the speed of the rotary valve to make the oxygen purity reach the standard of medical molecular sieve oxygen.
Description
technical field [0001] The invention relates to the field of oxygen generators, in particular to a gas distribution valve for oxygen generators. Background technique [0002] At present, the oxygen generator uses molecular sieve physical adsorption and desorption technology. The adsorption tower of the oxygen generator is filled with molecular sieves, which can absorb nitrogen in the air when pressurized, and the remaining unabsorbed oxygen is collected and purified. Become high-purity oxygen. [0003] The principle of molecular sieve separation of air depends on the different diffusion speeds of oxygen molecules and nitrogen molecules in the air in the micropores of fluorspar molecular sieves, or different adsorption forces or both effects work at the same time. Under the condition of adsorption equilibrium, the adsorption force of fluorspar molecular sieve to oxygen and nitrogen molecules is close. However, under the condition of adsorption kinetics, the diffusion speed ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F16K3/08F16K3/10C01B13/02
CPCF16K3/08C01B13/027C01B2210/0018F16K3/0254F16K3/10
Inventor 朱泽杰朱占磊张金海
Owner 河北金利康科技集团有限公司